$post_author: WP_User Object
(
    [data] => stdClass Object
        (
            [ID] => 740
            [user_login] => taki-theodoracopulos
            [user_pass] => 35614491075302792f6730a6f64bb50d
            [user_nicename] => taki-theodoracopulos
            [user_email] => [email protected]
            [user_url] => 
            [user_registered] => 2012-11-02 07:11:15
            [user_activation_key] => 
            [user_status] => 0
            [display_name] => Taki Theodoracopulos
            [type] => wpuser
        )

    [ID] => 740
    [caps] => Array
        (
            [contributor] => 1
        )

    [cap_key] => wp_capabilities
    [roles] => Array
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            [0] => contributor
        )

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            [edit_posts] => 1
            [read] => 1
            [level_1] => 1
            [level_0] => 1
            [delete_posts] => 1
            [email_single_user] => 1
            [contributor] => 1
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    [filter] => 
    [site_id:WP_User:private] => 1
)

get_the_author_meta: 

$bio: Taki is an ex-Greek Davis Cup player as well as a former captain of the Greek national karate team. He has won the U.S. national veterans judo championship twice, and in 2008 was world veterans judo champion 70 and over. Since 1967, when he began his career with National Review, he has been a columnist for the London Spectator, the London Sunday Times, Esquire Magazine, Vanity Fair and Chronicles Magazine. In 2002 he founded The American Conservative with Pat Buchanan. He has covered the Vietnam War as well as the Yom Kippur War and the Cyprus conflict of 1974.

$bios: Array
(
    [0] => Taki is an ex-Greek Davis Cup player as well as a former captain of the Greek national karate team. He has won the U.S. national veterans judo championship twice, and in 2008 was world veterans judo champion 70 and over. Since 1967, when he began his career with National Review, he has been a columnist for the London Spectator, the London Sunday Times, Esquire Magazine, Vanity Fair and Chronicles Magazine. In 2002 he founded The American Conservative with Pat Buchanan. He has covered the Vietnam War as well as the Yom Kippur War and the Cyprus conflict of 1974.
)

Taki is an ex-Greek Davis Cup player as well as a former captain of the Greek national karate team. He has won the U.S. national veterans judo championship twice, and in 2008 was world veterans judo champion 70 and over. Since 1967, when he began his career with National Review, he has been a columnist for the London Spectator, the London Sunday Times, Esquire Magazine, Vanity Fair and Chronicles Magazine. In 2002 he founded The American Conservative with Pat Buchanan. He has covered the Vietnam War as well as the Yom Kippur War and the Cyprus conflict of 1974.